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Methyl 5-methoxy-2,4-pentadienoate

This cycloaddition can be used for two approaches to tropones. One involves cycloaddition of 1 to methyl 5-methoxy-2,4-pentadienoate, as outlined in equation (I). The other is a pressure-promoted cycloaddition of 1 with a-pyrone, outlined... [Pg.90]

In high polarity solvents, such as acetonitrile, dimethyl sulfoxide, methyl acetate, and methanol, the branched dimer, 4-methyl azelate precursor, is formed in high yield. In methanol, a methoxy dimer (CH302CCgH] 4(0013)0020113) is also formed in moderate yield. Heavies contain both an acyclic methyl, 4-pentadienoate trimeric product and high molecular weight methyl, 4-pentadienoate homopolymer. Polymerization in the absence of air(48) appears to be catalyzed by traces of the tertiary phosphine which is used to prepare the palladium dimerization catalyst. [Pg.92]

Dihydroxy-2,2-dimethyl-6-methylenecyclohexyl)-3-methyl-2,4-pentadienoic acid Me ester, in D-30155 1,6-Dihydroxy-3,11(13)-eudesmadien-12-oic acid Me ester, in D-30171 3-Hydroxy-6-methoxy-7( 11 )-eremophilen-12,8-olide, in D-30168... [Pg.542]

See other pages where Methyl 5-methoxy-2,4-pentadienoate is mentioned: [Pg.404]    [Pg.165]    [Pg.404]    [Pg.86]    [Pg.497]    [Pg.193]   
See also in sourсe #XX -- [ Pg.90 ]

See also in sourсe #XX -- [ Pg.90 ]



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2,4-Pentadienoates

5-Methoxy-4-methyl

Methyl 2,4-pentadienoate

Methyl 2,4-pentadienoates

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